I have tried in all the polar, nonpolar and mixture of solvents. Otherwise there is any impurities present in the complex means how I can remove the impurities without using any chromatographic techniques like column. Please give me the suggestion to bring out the crystal I am waiting only for this characterization.
Is your complex soluble at all? If so which solvents is it soluble in? What techniques for recrystllisation have you tried? Is this just by classical heat, filter, cool methods? There are other options which might work better for you such as slow diffusion. A couple of good reviews on crystal growth techniques can be found here:
depts.washington.edu/eooptic/linkfiles/Crystallisation_Techniques.doc
http://xray.chem.ufl.edu/growing%20tips.htm
Hope this helps.
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